source: src/libcfa/stdlib.c@ 934d200

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors deferred_resn demangler enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum with_gc
Last change on this file since 934d200 was 3ce0d440, checked in by Peter A. Buhr <pabuhr@…>, 7 years ago

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1//
2// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// stdlib.c --
8//
9// Author : Peter A. Buhr
10// Created On : Thu Jan 28 17:10:29 2016
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Sat Jun 2 06:15:05 2018
13// Update Count : 448
14//
15
16#include "stdlib"
17
18//---------------------------------------
19
20#define _XOPEN_SOURCE 600 // posix_memalign, *rand48
21#include <string.h> // memcpy, memset
22#include <malloc.h> // malloc_usable_size
23#include <math.h> // fabsf, fabs, fabsl
24#include <complex.h> // _Complex_I
25#include <assert.h>
26
27//---------------------------------------
28
29// resize, non-array types
30forall( dtype T | sized(T) ) T * alloc( T ptr[], size_t dim, char fill ) {
31 size_t olen = malloc_usable_size( ptr ); // current allocation
32 char * nptr = (void *)realloc( (void *)ptr, dim * (size_t)sizeof(T) ); // C realloc
33 size_t nlen = malloc_usable_size( nptr ); // new allocation
34 if ( nlen > olen ) { // larger ?
35 memset( nptr + olen, (int)fill, nlen - olen ); // initialize added storage
36 } //
37 return (T *)nptr;
38} // alloc
39
40// allocation/deallocation and constructor/destructor, non-array types
41forall( dtype T | sized(T), ttype Params | { void ?{}( T &, Params ); } )
42T * new( Params p ) {
43 return &(*malloc()){ p }; // run constructor
44} // new
45
46forall( dtype T | sized(T) | { void ^?{}( T & ); } )
47void delete( T * ptr ) {
48 if ( ptr ) { // ignore null
49 ^(*ptr){}; // run destructor
50 free( ptr );
51 } // if
52} // delete
53
54forall( dtype T, ttype Params | sized(T) | { void ^?{}( T & ); void delete( Params ); } )
55void delete( T * ptr, Params rest ) {
56 if ( ptr ) { // ignore null
57 ^(*ptr){}; // run destructor
58 free( ptr );
59 } // if
60 delete( rest );
61} // delete
62
63
64// allocation/deallocation and constructor/destructor, array types
65forall( dtype T | sized(T), ttype Params | { void ?{}( T &, Params ); } )
66T * anew( size_t dim, Params p ) {
67 T *arr = alloc( dim );
68 for ( unsigned int i = 0; i < dim; i += 1 ) {
69 (arr[i]){ p }; // run constructor
70 } // for
71 return arr;
72} // anew
73
74forall( dtype T | sized(T) | { void ^?{}( T & ); } )
75void adelete( size_t dim, T arr[] ) {
76 if ( arr ) { // ignore null
77 for ( int i = dim - 1; i >= 0; i -= 1 ) { // reverse allocation order, must be unsigned
78 ^(arr[i]){}; // run destructor
79 } // for
80 free( arr );
81 } // if
82} // adelete
83
84forall( dtype T | sized(T) | { void ^?{}( T & ); }, ttype Params | { void adelete( Params ); } )
85void adelete( size_t dim, T arr[], Params rest ) {
86 if ( arr ) { // ignore null
87 for ( int i = dim - 1; i >= 0; i -= 1 ) { // reverse allocation order, must be unsigned
88 ^(arr[i]){}; // run destructor
89 } // for
90 free( arr );
91 } // if
92 adelete( rest );
93} // adelete
94
95//---------------------------------------
96
97float _Complex strto( const char * sptr, char ** eptr ) {
98 float re, im;
99 char * eeptr;
100 re = strtof( sptr, &eeptr );
101 if ( sptr == eeptr ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0f + 0.0f * _Complex_I; }
102 im = strtof( eeptr, &eeptr );
103 if ( sptr == eeptr ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0f + 0.0f * _Complex_I; }
104 if ( *eeptr != 'i' ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0f + 0.0f * _Complex_I; }
105 return re + im * _Complex_I;
106} // strto
107
108double _Complex strto( const char * sptr, char ** eptr ) {
109 double re, im;
110 char * eeptr;
111 re = strtod( sptr, &eeptr );
112 if ( sptr == eeptr ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0 + 0.0 * _Complex_I; }
113 im = strtod( eeptr, &eeptr );
114 if ( sptr == eeptr ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0 + 0.0 * _Complex_I; }
115 if ( *eeptr != 'i' ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0 + 0.0 * _Complex_I; }
116 return re + im * _Complex_I;
117} // strto
118
119long double _Complex strto( const char * sptr, char ** eptr ) {
120 long double re, im;
121 char * eeptr;
122 re = strtold( sptr, &eeptr );
123 if ( sptr == eeptr ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0L + 0.0L * _Complex_I; }
124 im = strtold( eeptr, &eeptr );
125 if ( sptr == eeptr ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0L + 0.0L * _Complex_I; }
126 if ( *eeptr != 'i' ) { if ( eptr != 0 ) *eptr = eeptr; return 0.0L + 0.0L * _Complex_I; }
127 return re + im * _Complex_I;
128} // strto
129
130//---------------------------------------
131
132forall( otype E | { int ?<?( E, E ); } ) {
133 E * bsearch( E key, const E * vals, size_t dim ) {
134 int cmp( const void * t1, const void * t2 ) {
135 return *(E *)t1 < *(E *)t2 ? -1 : *(E *)t2 < *(E *)t1 ? 1 : 0;
136 } // cmp
137 return (E *)bsearch( &key, vals, dim, sizeof(E), cmp );
138 } // bsearch
139
140 size_t bsearch( E key, const E * vals, size_t dim ) {
141 E * result = bsearch( key, vals, dim );
142 return result ? result - vals : dim; // pointer subtraction includes sizeof(E)
143 } // bsearch
144
145 size_t bsearchl( E key, const E * vals, size_t dim ) {
146 size_t l = 0, m, h = dim;
147 while ( l < h ) {
148 m = (l + h) / 2;
149 if ( (E &)(vals[m]) < key ) { // cast away const
150 l = m + 1;
151 } else {
152 h = m;
153 } // if
154 } // while
155 return l;
156 } // bsearchl
157
158 E * bsearchl( E key, const E * vals, size_t dim ) {
159 size_t posn = bsearchl( key, vals, dim );
160 return (E *)(&vals[posn]); // cast away const
161 } // bsearchl
162
163 size_t bsearchu( E key, const E * vals, size_t dim ) {
164 size_t l = 0, m, h = dim;
165 while ( l < h ) {
166 m = (l + h) / 2;
167 if ( ! ( key < (E &)(vals[m]) ) ) { // cast away const
168 l = m + 1;
169 } else {
170 h = m;
171 } // if
172 } // while
173 return l;
174 } // bsearchu
175
176 E * bsearchu( E key, const E * vals, size_t dim ) {
177 size_t posn = bsearchu( key, vals, dim );
178 return (E *)(&vals[posn]);
179 } // bsearchu
180
181
182 void qsort( E * vals, size_t dim ) {
183 int cmp( const void * t1, const void * t2 ) {
184 return *(E *)t1 < *(E *)t2 ? -1 : *(E *)t2 < *(E *)t1 ? 1 : 0;
185 } // cmp
186 qsort( vals, dim, sizeof(E), cmp );
187 } // qsort
188} // distribution
189
190
191forall( otype K, otype E | { int ?<?( K, K ); K getKey( const E & ); } ) {
192 E * bsearch( K key, const E * vals, size_t dim ) {
193 int cmp( const void * t1, const void * t2 ) {
194 return *(K *)t1 < getKey( *(E *)t2 ) ? -1 : getKey( *(E *)t2 ) < *(K *)t1 ? 1 : 0;
195 } // cmp
196 return (E *)bsearch( &key, vals, dim, sizeof(E), cmp );
197 } // bsearch
198
199 size_t bsearch( K key, const E * vals, size_t dim ) {
200 E * result = bsearch( key, vals, dim );
201 return result ? result - vals : dim; // pointer subtraction includes sizeof(E)
202 } // bsearch
203
204 size_t bsearchl( K key, const E * vals, size_t dim ) {
205 size_t l = 0, m, h = dim;
206 while ( l < h ) {
207 m = (l + h) / 2;
208 if ( getKey( vals[m] ) < key ) {
209 l = m + 1;
210 } else {
211 h = m;
212 } // if
213 } // while
214 return l;
215 } // bsearchl
216
217 E * bsearchl( K key, const E * vals, size_t dim ) {
218 size_t posn = bsearchl( key, vals, dim );
219 return (E *)(&vals[posn]); // cast away const
220 } // bsearchl
221
222 size_t bsearchu( K key, const E * vals, size_t dim ) {
223 size_t l = 0, m, h = dim;
224 while ( l < h ) {
225 m = (l + h) / 2;
226 if ( ! ( key < getKey( vals[m] ) ) ) {
227 l = m + 1;
228 } else {
229 h = m;
230 } // if
231 } // while
232 return l;
233 } // bsearchu
234
235 E * bsearchu( K key, const E * vals, size_t dim ) {
236 size_t posn = bsearchu( key, vals, dim );
237 return (E *)(&vals[posn]);
238 } // bsearchu
239} // distribution
240
241//---------------------------------------
242
243[ int, int ] div( int num, int denom ) { div_t qr = div( num, denom ); return [ qr.quot, qr.rem ]; }
244[ long int, long int ] div( long int num, long int denom ) { ldiv_t qr = ldiv( num, denom ); return [ qr.quot, qr.rem ]; }
245[ long long int, long long int ] div( long long int num, long long int denom ) { lldiv_t qr = lldiv( num, denom ); return [ qr.quot, qr.rem ]; }
246forall( otype T | { T ?/?( T, T ); T ?%?( T, T ); } )
247[ T, T ] div( T num, T denom ) { return [ num / denom, num % denom ]; }
248
249//---------------------------------------
250
251extern "C" { void srandom( unsigned int seed ) { srand48( (long int)seed ); } } // override C version
252char random( void ) { return (unsigned long int)random(); }
253char random( char u ) { return random( (unsigned long int)u ); }
254char random( char l, char u ) { return random( (unsigned long int)l, (unsigned long int)u ); }
255int random( void ) { return (long int)random(); }
256int random( int u ) { return random( (long int)u ); }
257int random( int l, int u ) { return random( (long int)l, (long int)u ); }
258unsigned int random( void ) { return (unsigned long int)random(); }
259unsigned int random( unsigned int u ) { return random( (unsigned long int)u ); }
260unsigned int random( unsigned int l, unsigned int u ) { return random( (unsigned long int)l, (unsigned long int)u ); }
261extern "C" { long int random( void ) { return mrand48(); } } // override C version
262long int random( long int u ) { if ( u < 0 ) return random( u, 0 ); else return random( 0, u ); }
263long int random( long int l, long int u ) { assert( l < u ); return lrand48() % (u - l) + l; }
264unsigned long int random( void ) { return lrand48(); }
265unsigned long int random( unsigned long int u ) { return lrand48() % u; }
266unsigned long int random( unsigned long int l, unsigned long int u ) { assert( l < u ); return lrand48() % (u - l) + l; }
267float random( void ) { return (float)drand48(); } // cast otherwise float uses lrand48
268double random( void ) { return drand48(); }
269float _Complex random( void ) { return (float)drand48() + (float _Complex)(drand48() * _Complex_I); }
270double _Complex random( void ) { return drand48() + (double _Complex)(drand48() * _Complex_I); }
271long double _Complex random( void ) { return (long double)drand48() + (long double _Complex)(drand48() * _Complex_I); }
272
273
274// Local Variables: //
275// tab-width: 4 //
276// End: //
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